Home / 1,255,030.38-1,731,875.46-711,172.66

Finding the Fourth Proportional to 1,255,030.38, 1,731,875.46 and 711,172.66

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Solution

The fourth proportional to 1,255,030.38, 1,731,875.46 and 711,172.66 is: 981,380.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,030.38 : 1,731,875.46 = 711,172.66 : x
  2. Step 2: Convert to fraction form
    1,255,030.38/1,731,875.46 = 711,172.66/x
  3. Step 3: Cross multiply
    1,255,030.38x = 1,731,875.46 × 711,172.66
  4. Step 4: Simplify right side
    1,255,030.38x = 1,231,662,477,676.92
  5. Step 5: Solve for x
    x = 1,231,662,477,676.92/1,255,030.38
  6. Step 6: Final answer
    x = 981,380.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.